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Finding the Fourth Proportional to 17,917.80, 26,844.30 and 15,325.80

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Solution

The fourth proportional to 17,917.80, 26,844.30 and 15,325.80 is: 22,960.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,917.80 : 26,844.30 = 15,325.80 : x
  2. Step 2: Convert to fraction form
    17,917.80/26,844.30 = 15,325.80/x
  3. Step 3: Cross multiply
    17,917.80x = 26,844.30 × 15,325.80
  4. Step 4: Simplify right side
    17,917.80x = 411,410,372.94
  5. Step 5: Solve for x
    x = 411,410,372.94/17,917.80
  6. Step 6: Final answer
    x = 22,960.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.